I do breed and raise livebearers to keep rare species available to the aquarium scene. And yes, they can be sold. But I also use them for shows, exhibitions and also zoos can contact me when they are looking for wild species. But also universities or other research labs can contact me. And I do sell them as well at relevant vivaristic events. Which also means that foreign keepers and breeders will purchase them at an vivaristic event.
But I also support a project that will release wild species (that are captive bred) into their endemic areas. For there are a serious number of wild livebearers that are endangered in their natural enviroment.
Overhere some pictures of my stand.